YES1125N Wiring Solenoid for Diesel Genset ATS Auto Changeover Switch Model YES1125N | Size 2 | Rated 125A | Poles 2P (options 3P and 4P) | PC Class 80A 100A 125A | Utilization AC33B What this product does Designed for automatic transfer switch applications in diesel generator sets to provide reliable electrical changeover between utility and generator power. Acts as the wiring solenoid component for ATS systems, enabling controlled contact actuation for smooth transfer operations. Key benefits and why you need it Reliable automatic switching: Ensures consistent actuation in ATS systems so transfer events occur promptly when mains fail or restore. Compatibility with common ATS setups: Supports PC class ratings of 80A, 100A, and 125A and AC33B utilization, making it suitable for a range of transfer switch assemblies. Flexible pole configurations: Available for 2P, 3P, and 4P switch arrangements; this listing is the 2P variant sized as Size 2 and rated for 125A. Simple integration: Form factor and function match typical diesel genset changeover designs, reducing fitment and wiring adjustments during installation. Built for electrical applications: Purposebuilt for switching duties in generator changeover circuits. Main specifications Model: YES1125N Rated current: 125A (PC class options include 80A, 100A, 125A) Poles: 2P (variants 3P and 4P available) Size: 2 Utilization category: AC33B Function: Wiring solenoid for ATS auto changeover in diesel gensets What makes it stand out Direct fit for ATS changeover systems used with diesel generators, reducing the need for custom wiring or adaptations. Clear rating and pole options let you pick the correct configuration for your system load and phase requirements. Designed to perform the specific switching function required by AC33B applications, supporting motor and heavyload switching typical in generator transfers. Typical applications and scenarios Residential backup power: Integrate with a home diesel generator ATS to switch between utility supply and generator power when outages occur. Small commercial sites: Use in retail or office buildings with diesel genset backup to ensure uninterrupted power for critical circuits during power interruptions. Light industrial equipment: Fit into control panels for machinery or facility systems that require automatic changeover between mains and generator power. Installation notes and compatibility Confirm the required pole count and rated current for your ATS assembly before ordering. This listing corresponds to the 2P, Size 2, 125A variant of model YES1125N. Compatible with ATS and generator control systems that use PC class 80A, 100A, or 125A components and that specify AC33B switching characteristics. Why professionals choose this component Offers a straightforward, specificationmatched solution for ATS wiring and solenoid requirements in diesel genset applications. Helps ensure proper contact actuation in automatic changeover sequences when matched to the correct ATS configuration. If you need a different pole count or current class, verify the variant that matches your ATS design and load profile.